Attacks of asthma result from narrowing of the bronchial tubes. This constriction, along with edema (swelling) of the bronchial linings and accumulation of mucus, results in wheezing, extreme dyspnea (difficulty in breathing), and cyanosis. Asthma is most common in children. Although its causes are uncertain, a main factor is irritation caused by allergy. Heredity may also play a role. Treatment of asthma includes removal of allergens, administration of bronchodilators to widen the airways, and administration of steroids.
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If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.